re: This service dog problem is out of control

Hi David (mr.gnome) thanks for sharing and I’m sorry you went through that
The thing is, the presence of dogs in the airport, both for service and for security work, negates the allergy argument.
If a person has severe anxiety, a dog can perform several functions. For social anxiety, the dog may be trained to put space between a person and someone approaching them, to alert the owner when someone is coming up from behind, or even to sense heart rhythm changes that can signal a building panic attack.